ZrO₂, Mo(VI)/ZrO₂, SO₄^2-/ZrO₂ and Pt-SO₄^2-/ZrO₂ supported on honeycomb monoliths have been prepared and characterized for their physico-chemical properties such as surface acidity, crystalinity, functionality and morphology. These materials have been used as solid acid catalysts in the pinacol rearrangement of benzopinacol under microwave irradiation. A few diols have also been subjected to pinacol rearrangement to obtain a good conversion of rearrangement products with high selectivity. Optimization of reaction conditions has also studied to determine the most suitable reaction conditions for the effective synthesis of pinacolone derivatives. Up to 98% conversion of benzopinacol is observed under a set of optimized reaction conditions. A reactivation and reusability study of zirconia based solid acid catalysts has also performed.

中文翻译：

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堇青石蜂窝状负载的Mo（VI）/ ZrO2用于微波辅助的Pinacol-Pinacolone重排

ZrO ₂，Mo（VI）/ ZrO ₂，SO ₄ ^2- / ZrO ₂和Pt-SO ₄ ^2- / ZrO ₂制备了负载在蜂窝状整料上的载体，并对其物理化学性质进行了表征，例如表面酸度，结晶度，功能性和形态。这些材料已经在微波辐射下用作苯频哪醇的频哪醇重排中的固体酸催化剂。一些二醇也已经进行了频哪醇重排，以高选择性获得重排产物的良好转化。还已经研究了反应条件的优化，以确定最合适的反应条件以有效合成频哪酮衍生物。在一组优化的反应条件下，苯并频哪醇的转化率高达98％。还进行了基于氧化锆的固体酸催化剂的再活化和可重复使用性研究。